DES MOINES, Wash. - Five people were injured - three of them seriously - when a speeding car driven by a 19-year-old man ran a stop sign and slammed into another vehicle Saturday in Des Moines, police said.

Officers responded to the crash scene, at the intersection of S. 240th Street and 20th Avenue South, at about 3 p.m. after receiving a report of a serious injury accident, said Bob Bohl of the Des Moines police.

When police arrived on scene, they discovered that there were five people in each of the vehicles at the time of the crash.

All five occupants of the car that was hit were injured, including the 25-year-old female driver, who sustained potential life-threatening injuries. Two others in the car, a 14-year-old boy and a 14-year-old girl, also sustained very serious injuries and were rushed to Harborview Medical Center. The two remaining passengers had less serious injuries and were taken to St. Francis Hospital.

An investigation found that the 19-year-old driver of the other car was heading south on 20th Avenue South at high speed when he blew through a stop sign and crashed into the victims' vehicle, Bohl said.

The 19-year-old sustained minor injuries in the crash. He was treated at Highline Medical Center then released into police custody. He was booked into jail for investigation of four counts of vehicular assault. His name was not immediately available.

The other four occupants of the speeding vehicle were not injured and are cooperating with the investigators.